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1. 发明公开

EP3705808A1 AIR CONDITIONER 有权
公开(公告)号：EP3705808A1
公开(公告)日：2020-09-09
申请号：EP18873146.7
申请日：2018-09-27
申请人： Daikin Industries, Ltd.
发明人： ITOU, Hiroshi , NAKATA, Takahiro , OKA, Seiji , ASHIZAWA, Tomoharu
IPC分类号： F25B1/00 , F24F11/86
摘要： An air conditioner includes a compressor, the operation frequency of which is variable, and a controller for executing compressor protection control to raise the operation frequency of the compressor to a required operation frequency at the start of the cooling or heating operation. The compressor protection control includes a first protection control and a second protection control. In the first protection control, the operation frequency of the compressor is controlled such that the time period from the activation of the compressor to the time at which the operation frequency reaches the required operation frequency should become relatively long. In the second protection control, the operation frequency of the compressor is controlled such that the time period from the activation of the compressor to the time at which the operation frequency reaches the required operation frequency should be relatively short. The control unit executes the second protection control when the predetermined condition is satisfied at the time of executing the compressor protection control.

2. 发明授权

EP2918929B1 AIR-CONDITIONING INDOOR UNIT 有权
公开(公告)号：EP2918929B1
公开(公告)日：2020-08-05
申请号：EP13836819.6
申请日：2013-08-27
申请人： Daikin Industries, Ltd.
发明人： MORI, Takashige , MATSUBARA, Atsushi , FUJIOKA, Yuuki , NAKATA, Takahiro
IPC分类号： F24F1/0011 , F24F11/79 , F24F11/77

3. 发明公开

EP3370007A1 AIR CONDITIONER 审中-实审转让
公开(公告)号：EP3370007A1
公开(公告)日：2018-09-05
申请号：EP16859917.3
申请日：2016-10-27
申请人： Daikin Industries, Ltd.
发明人： NAKATA, Takahiro , YONEDA, Junya
IPC分类号： F24F11/04 , F24F11/02 , F25B1/00
CPC分类号： F24F11/74 , F24F11/30 , F24F11/77 , F24F11/89 , F24F2140/10 , F24F2140/12 , F24F2221/34 , F25B1/00 , F25B2500/07 , F25B2600/027 , F25B2700/193
摘要： To suppress an excessive increase in refrigerant pressure, an air conditioning apparatus (100) is equipped with an indoor fan (302), an indoor heat exchanger (301), and a control unit (310). The indoor heat exchanger generates conditioned air by exchanging heat between refrigerant and room air. The control unit (310) sets operating modes. The control unit (310) controls the rotational speed of the indoor fan. More specifically, in a case where the operating mode has been switched from one to the other of a normal heating mode and a hot air mode in which the conditioned air higher in temperature than in the normal heating mode is generated, the control unit (310) lowers the rotational speed at a second rate that is slower than a first rate which is a rate of decrease in the rotational speed in a case where the operating mode is set to the normal heating mode.

4. 发明公开

EP3339762A1 AIR CONDITIONER 有权
公开(公告)号：EP3339762A1
公开(公告)日：2018-06-27
申请号：EP16837066.6
申请日：2016-08-10
申请人： Daikin Industries, Ltd.
发明人： NAKATA, Takahiro , YONEDA, Junya
IPC分类号： F24F11/04 , F24F11/02 , F25B47/02
CPC分类号： F25B47/02 , F24F11/42 , F24F11/74 , F24F13/24
摘要： In order to provide an air conditioner that is capable of dealing with impact noise that occurs when a four-way valve is switched, and reducing heating capacity degradation before the air conditioner shifts to a defrosting operation, there is provided an air conditioner (1) in which an indoor fan (35) is running when a four-way valve (15) performs a switching action. Therefore, the noise of the indoor fan (35) drowns out impulse noise that occurs when the four-way valve (15) performs the switching action, and a user can be prevented from feeling uncomfortable due to a strange noise. In addition, because there is no need to reduce an operating frequency of the compressor before shifting to the defrosting operation, a degradation in heating operation capability can be reduced.

5. 发明授权

EP3059515B1 AIR CONDITIONER 有权转让
公开(公告)号：EP3059515B1
公开(公告)日：2017-12-06
申请号：EP14853743.4
申请日：2014-10-17
申请人： Daikin Industries, Ltd.
发明人： NAKATA, Takahiro , UGAI, Kouji , MORI, Takashige
IPC分类号： F24F11/02 , F24F11/053 , F24F11/00 , F24F3/14 , F24F1/00
CPC分类号： F24F11/77 , F24F1/0007 , F24F3/14 , F24F11/30 , F24F2110/10 , F24F2110/20 , F24F2140/20
摘要： In dehumidification operation, too large an air volume of an indoor unit leads to too small an extent of the evaporation region of an indoor heat exchanger to dehumidify the air. An air conditioner of the present invention is capable of performing: cooling operation in which the entirety of the indoor heat exchanger functions as the evaporation region; and dehumidification operation in which a portion of the indoor heat exchanger close to a liquid inlet functions as the evaporation region. The air conditioner includes an indoor fan opposed to the indoor heat exchanger. In the dehumidification operation, the compressor and the expansion valve are controlled so that the extent of the evaporation region varies depending on a load. The maximum number of revolutions of the indoor fan in the dehumidification operation is smaller than the maximum number of revolutions of the indoor fan in the cooling operation.

6. 发明公开

EP3059515A1 AIR CONDITIONER 有权转让
标题翻译：冷气机
公开(公告)号：EP3059515A1
公开(公告)日：2016-08-24
申请号：EP14853743.4
申请日：2014-10-17
申请人： Daikin Industries, Ltd.
发明人： NAKATA, Takahiro , UGAI, Kouji , MORI, Takashige
IPC分类号： F24F11/02 , F24F11/053
CPC分类号： F24F11/77 , F24F1/0007 , F24F3/14 , F24F11/30 , F24F2110/10 , F24F2110/20 , F24F2140/20
摘要： In dehumidification operation, too large an air volume of an indoor unit leads to too small an extent of the evaporation region of an indoor heat exchanger to dehumidify the air. An air conditioner of the present invention is capable of performing: cooling operation in which the entirety of the indoor heat exchanger functions as the evaporation region; and dehumidification operation in which a portion of the indoor heat exchanger close to a liquid inlet functions as the evaporation region. The air conditioner includes an indoor fan opposed to the indoor heat exchanger. In the dehumidification operation, the compressor and the expansion valve are controlled so that the extent of the evaporation region varies depending on a load. The maximum number of revolutions of the indoor fan in the dehumidification operation is smaller than the maximum number of revolutions of the indoor fan in the cooling operation.
摘要翻译：在除湿运转中，室内机的风量过大会导致室内热交换器的蒸发区域过小，不能进行空气的除湿。本发明的空调能够执行：整个室内热交换器用作蒸发区域的冷却操作; 以及靠近液体入口的室内热交换器的一部分用作蒸发区域的除湿操作。空调包括与室内热交换器相对的室内风扇。在除湿运转中，压缩机和膨胀阀被控制为使得蒸发区域的范围根据负载而变化。除湿运转时的室内风扇的最大转速小于制冷运转时的室内风扇的最大转速。

7. 发明公开

EP3705810A1 AIR CONDITIONER 无效转让
公开(公告)号：EP3705810A1
公开(公告)日：2020-09-09
申请号：EP18873318.2
申请日：2018-09-26
申请人： Daikin Industries, Ltd.
发明人： ITOU, Hiroshi , NAKATA, Takahiro , OKA, Seiji , ASHIZAWA, Tomoharu
IPC分类号： F25B13/00 , F24F11/86
摘要： An air conditioner comprising: a compressor in which an operating frequency is changeable; an outdoor heat exchanger; an indoor heat exchanger; and a switching mechanism configured to reversibly change a flow of a refrigerant in a refrigerant circuit. When activating the compressor in accordance with a start of the cooling operation or heating operation, the air conditioner is configured to perform a refrigerant discharge activation operation that operates the compressor at a first target frequency with the switching mechanism switched to a reverse cycle for a predetermined time and then changes the operating frequency of the compressor from the first target frequency and operate the compressor at a second target frequency that is lower than the first target frequency. When performing the refrigerant discharge activation operation, a first change rate at which the operating frequency is decreased from the first target frequency to the second target frequency is greater than a second change rate at which the operating frequency of the compressor is decreased in the heating operation.

8. 发明公开

EP3705801A1 AIR CONDITIONER 有权
公开(公告)号：EP3705801A1
公开(公告)日：2020-09-09
申请号：EP18874501.2
申请日：2018-09-28
申请人： Daikin Industries, Ltd.
发明人： ASHIZAWA, Tomoharu , NAKATA, Takahiro , OKA, Seiji , ITOU, Hiroshi
IPC分类号： F24F11/81 , F24F11/79 , F25B1/00 , F24F140/20
摘要： This air conditioner includes: an indoor heat exchanger; an indoor fan; an indoor discharge port; an up/down air direction plate; an indoor heat exchanger temperature sensor; and a control device. The control device has an air volume control unit for restricting the air volume of the indoor fan at the start of a heating operation, and an air direction control unit for controlling the up/down air direction of the up/down air direction plate. The air volume control unit controls the air volume of the indoor fan at the start of the heating operation so that the air volume increases as the temperature of the indoor heat exchanger increases. The air direction control unit restricts the position of the up/down air direction plate at the start of the heating operation so that the up/down air volume plate is oriented toward at least an upward direction within a discharge direction adjustment range.

9. 发明公开

EP3578897A1 AIR CONDITIONER 有权
公开(公告)号：EP3578897A1
公开(公告)日：2019-12-11
申请号：EP17895231.3
申请日：2017-12-26
申请人： Daikin Industries, Ltd.
发明人： NAKATA, Takahiro , ASHIZAWA, Tomoharu
IPC分类号： F24F11/75 , F24F11/74 , F24F11/79 , F24F110/00 , F24F140/00 , F25B1/00 , F25B13/00
摘要： To reduce uncomfortable feeling due to cold air and promote a rise in room temperature in an air conditioner that performs heating through a vapor compression refrigeration cycle. An indoor heat exchanger (16) exchanges heat between refrigerant and indoor air in the vapor compression refrigeration cycle. An indoor fan (31) is configured to change an air volume at a time of blowing out, into a room, conditioned air obtained through the heat exchange by the indoor heat exchanger. An air conditioner (1) performs, when starting heating, first cold air reduction control for restricting the air volume of the indoor fan (31) until a temperature of the indoor heat exchanger (16) reaches a first temperature, and second cold air reduction control for cancelling the air volume restriction at the indoor fan (31) when the temperature of the indoor heat exchanger (16) reaches a second temperature lower than the first temperature.

10. 发明公开

EP3370021A1 REFRIGERATION DEVICE 有权转让
公开(公告)号：EP3370021A1
公开(公告)日：2018-09-05
申请号：EP16859807.6
申请日：2016-10-25
申请人： Daikin Industries, Ltd.
发明人： NAKATA, Takahiro , ITOU, Hiroshi
IPC分类号： F25B47/02 , F25B13/00
CPC分类号： F25B49/022 , F24F11/89 , F25B13/00 , F25B47/02 , F25B47/025 , F25B2500/12 , F25B2600/022 , F25B2600/0253 , F25B2700/2103 , F25B2700/2104 , F25B2700/2106 , F25B2700/21151 , F25B2700/21173 , Y02B30/741
摘要： To provide a refrigeration apparatus that suppresses noise that occurs when reverting to a heating operation and with which it is easy to ensure heating capacity. An air conditioner (1) that is a refrigeration apparatus has, in a refrigerant circuit (10), a compressor (11), an outdoor heat exchanger (13) that functions as an evaporator in a heating operation, an indoor heat exchanger (16) that functions as a condenser in the heating operation, and a four way valve (12). The refrigerant circuit (10) is configured in such a way that a high-pressure value of the refrigerant circuit (10) in a defrost operation is lower than a high-pressure value of the refrigerant circuit (10) in the heating operation. An end-of-defrost frequency decrease rate, which is a rate of decrease in the operating frequency of the compressor (11) in the defrost operation, is set faster than a normal frequency decrease rate, which is a rate of decrease in the operating frequency of the compressor (11) in the heating operation.

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